{"version":"1.0","type":"link","title":"Choice function - Newikis","description":"Let X be a set of sets none of which are empty. Then a choice function (selector, selection) on X is a mathematical function f that is defined on X such that f is a mapping that assigns each element of X to one of its elements.","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}